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Tao Y, Ren J, Zhu H, Li J, Cui H. Exploring Spatiotemporal Patterns of Algal Cell Density in Lake Dianchi with Explainable Machine Learning. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124395. [PMID: 38901816 DOI: 10.1016/j.envpol.2024.124395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/29/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
The escalating global occurrence of algal blooms poses a growing threat to ecosystem services. In this study, the spatiotemporal heterogeneity of water quality parameters was leveraged to partition Lake Dianchi into three clusters. Considering water quality parameters and both the delayed and instantaneous effects of meteorological factors, ensemble learning, and quasi-Monte Carlo methods were employed to predict daily algal cell density (AD) between January 2021 and January 2024. Consistently, superior predictive accuracy across all three clusters was exhibited by the Stacking-Elastic-Net regularization model. Furthermore, the minimum combination of drivers that achieved near-optimal accuracy for each cluster was identified, striking a balance between accuracy and cost. The ranking of the effect of drivers on AD varied by cluster, while the delayed effect of meteorological factors on AD generally outweighed their instantaneous effect for all clusters. Additionally, the heterogeneous or homogeneous thresholds and responses between drivers and AD were explored. These findings could serve as a scientific and cost-effective basis for government agencies to develop regional sustainable strategies for managing water quality.
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Affiliation(s)
- Yiwen Tao
- School of Mathematics and Statistics, Zhengzhou University, Zhengzhou, 450001, Henan, China; Archaeology Innovation Center, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Jingli Ren
- School of Mathematics and Statistics, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Huaiping Zhu
- LAMPS, Department of Mathematics and Statistics, York university, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
| | - Jian Li
- Archaeology Innovation Center, Zhengzhou University, Zhengzhou, 450001, Henan, China; School of Geoscience and Technology, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Hao Cui
- Archaeology Innovation Center, Zhengzhou University, Zhengzhou, 450001, Henan, China; School of Geoscience and Technology, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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Lomonaco G, Franco A, De Smet J, Scieuzo C, Salvia R, Falabella P. Larval Frass of Hermetia illucens as Organic Fertilizer: Composition and Beneficial Effects on Different Crops. INSECTS 2024; 15:293. [PMID: 38667423 PMCID: PMC11050032 DOI: 10.3390/insects15040293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/10/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
Hermetia illucens has received a lot of attention as its larval stage can grow on organic substrates, even those that are decomposing. Black soldier fly breeding provides a variety of valuable products, including frass, a mixture of larval excrements, larval exuviae, and leftover feedstock, that can be used as a fertilizer in agriculture. Organic fertilizers, such as frass, bringing beneficial bacteria and organic materials into the soil, improves its health and fertility. This comprehensive review delves into a comparative analysis of frass derived from larvae fed on different substrates. The composition of micro- and macro-nutrients, pH levels, organic matter content, electrical conductivity, moisture levels, and the proportion of dry matter are under consideration. The effect of different feeding substrates on the presence of potentially beneficial bacteria for plant growth within the frass is also reported. A critical feature examined in this review is the post-application beneficial impacts of frass on crops, highlighting the agricultural benefits and drawbacks of introducing Hermetia illucens frass into cultivation operations. One notable feature of this review is the categorization of the crops studied into distinct groups, which is useful to simplify comparisons in future research.
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Affiliation(s)
- Giovanni Lomonaco
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (G.L.); (A.F.); (C.S.)
| | - Antonio Franco
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (G.L.); (A.F.); (C.S.)
- Spinoff Xflies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Jeroen De Smet
- Research Group for Insect Production and Processing, Department of Microbial and Molecular Systems, KU Leuven, 2440 Geel, Belgium;
| | - Carmen Scieuzo
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (G.L.); (A.F.); (C.S.)
- Spinoff Xflies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Rosanna Salvia
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (G.L.); (A.F.); (C.S.)
- Spinoff Xflies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Patrizia Falabella
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (G.L.); (A.F.); (C.S.)
- Spinoff Xflies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
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Cui H, Tao Y, Li J, Zhang J, Xiao H, Milne R. Predicting and analyzing the algal population dynamics of a grass-type lake with explainable machine learning. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120394. [PMID: 38412729 DOI: 10.1016/j.jenvman.2024.120394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 01/31/2024] [Accepted: 02/11/2024] [Indexed: 02/29/2024]
Abstract
Algal blooms, exacerbated by climate change and eutrophication, have emerged as a global concern. In this study, we introduce a novel interpretable machine learning (ML) workflow tailored for investigating the dynamics of algal populations in grass-type lakes, Liangzi lake. Utilizing seven ML methods and incorporating the covariance matrix adaptation evolution strategy (CMA-ES), we predict algal density across three distinct time periods, resulting in the construction of a total of 30 ML models. The CMA-ES-CatBoost model consistently demonstrates superior predictive accuracy and generalization capability across these periods. Through the collective validation of various interpretable tools, we identify water temperature and permanganate index as the two most critical water quality parameters (WQIs) influencing algal density in Liangzi Lake. Additionally, we quantify the independent and interactive effects of WQIs on algal density, pinpointing key thresholds and trends. Furthermore, we determine the minimum combination of WQIs that achieves near-optimal predictive performance, striking a balance between accuracy and cost-effectiveness. These findings offer a scientific and economically efficient foundation for governmental agencies to formulate strategies for water quality management and sustainable development.
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Affiliation(s)
- Hao Cui
- School of Geoscience and Technology, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Yiwen Tao
- School of Mathematics and Statistics, Zhengzhou University, Zhengzhou, 450001, Henan, China.
| | - Jian Li
- School of Geoscience and Technology, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Jinhui Zhang
- School of Mathematics and Information Science, Zhongyuan University of Technology, Zhengzhou, 450007, Henan, China
| | - Hui Xiao
- Department of Economics, Saint Mary's University, Halifax, B3H 3C3, Nova Scotia, Canada
| | - Russell Milne
- Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, T6G 2G1, Alberta, Canada
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Niu S, Xie J, Wang G, Li Z, Zhang K, Li H, Xia Y, Tian J, Yu E, Xie W, Gong W. Community assembly patterns and processes of bacteria in a field-scale aquaculture wastewater treatment system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:167913. [PMID: 37858824 DOI: 10.1016/j.scitotenv.2023.167913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Microbial communities are responsible for the biological treatment of wastewater, however, our comprehension of their diversity, assembly patterns, and functions remains limited. In this study, we analyzed bacterial communities in both water and sediment samples. These samples were gathered from a novel field-scale aquaculture wastewater treatment system (FAWTS), which employs a multi-stage purification process to eliminate nutrients from pond culture wastewater. Significant variations were observed in bacterial diversity and composition across various ponds within the system and at different stages of the culture. Notably, the bacterial community in the FAWTS displayed a distinct species abundance distribution. The influence of dispersal-driven processes on shaping FAWTS communities was found to be relatively weak. The utilization of neutral and null models unveiled that the assembly of microbial communities was primarily governed by stochastic processes. Moreover, environmental factors variables such as total nitrogen (TN), dissolved oxygen (DO), and temperature were found to be associated with both the composition and assembly of bacterial communities, influencing the relative significance of stochastic processes. Furthermore, we discovered a close relationship between that bacterial community composition and system functionality. These findings hold significant implications for microbial ecologists and environmental engineers, as they can collaboratively refine operational strategies while preserving biodiversity. This, in turn, promotes the stability and efficiency of the FAWTS. In summary, our study contributes to an enhanced mechanistic understanding of microbial community diversity, assembly patterns, and functionality within the FAWTS, offering valuable insights into both microbial ecology and wastewater treatment processes.
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Affiliation(s)
- Shuhui Niu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China
| | - Jun Xie
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Guangjun Wang
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Zhifei Li
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Kai Zhang
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Hongyan Li
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Yun Xia
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Jingjing Tian
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Ermeng Yu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Wenping Xie
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China
| | - Wangbao Gong
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510380, China; Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou, Guangdong 510380, China; Hainan Fisheries Innovation Research Institute, Chinese Academy of Fishery Sciences, Sanya, Hainan 572000, China.
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Yang S, Dong M, Lu H, Cai Z, Ge M, Xing J, Huang H, Huang Y, Sun G, Zhou S, Xu M. Explaining nitrogen turnover in sediments and water through variations in microbial community composition and potential function. CHEMOSPHERE 2023; 344:140379. [PMID: 37827459 DOI: 10.1016/j.chemosphere.2023.140379] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/20/2023] [Accepted: 10/05/2023] [Indexed: 10/14/2023]
Abstract
Anthropogenic activities greatly impact nitrogen (N) biogeochemical cycling in aquatic ecosystems. High N concentrations in coastal aquaculture waters threaten fishery production and aquaculture ecosystems and have become an urgent problem to be solved. Existing microbial flora and metabolic potential significantly regulate N turnover in aquatic ecosystems. To clarify the contribution of microorganisms to N turnover in sediment and water, we investigated three types of aquaculture ecosystems in coastal areas of Guangdong, China. Nitrate nitrogen (NO3--N) was the dominant component of total nitrogen in the sediment (interstitial water, 90.4%) and water (61.6%). This finding indicates that NO3--N (1.67-2.86 mg/L and 2.98-7.89 mg/L in the sediment and water) is a major pollutant in aquaculture ecosystems. In water, the relative abundances of assimilation nitrogen reduction and aerobic denitrifying bacteria, as well as the metabolic potentials of nitrogen fixation and dissimilated nitrogen in fish monoculture, were only 61.0%, 31.5%, 47.5%, and 27.2% of fish and shrimp polyculture, respectively. In addition, fish-shrimp polyculture reduced NO3--N content (2.86 mg/L) compared to fish monoculture (7.89 mg/L), which was consistent with changes in aerobic denitrification and nitrate assimilation, suggesting that polyculture could reduce TN concentrations in water bodies and alleviate nitrogen pollution risks. Further analysis via structural equation modeling (SEM) revealed that functional pathways (36% and 31%) explained TN changes better than microbial groups in sediment and water (13% and 11%), suggesting that microbial functional capabilities explain TN better than microbial community composition and other factors (pH, O2, and aquaculture type). This study enhances our understanding of nitrogen pollution characteristics and microbial community and functional capabilities related to sediment-water nitrogen turnover in three types of aquaculture ecosystems, which can contribute to the preservation of healthy coastal ecosystems.
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Affiliation(s)
- Shan Yang
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Meijun Dong
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Huibin Lu
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Zhipeng Cai
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Meng Ge
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Jia Xing
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Haobin Huang
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Youda Huang
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Guoping Sun
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Shaofeng Zhou
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Meiying Xu
- Guangdong Environmental Protection Key Laboratory of Microbiology and Ecological Safety, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
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Mohammadian T, Momeni H, Kazemi M, Mesbah M, Abedini M, Zare M, Khosravi M, Osroosh E. Eubiotic Effect of a Dietary Bio-Aqua ® and Sodium Diformate (NaDF) on Salmo trutta caspius: Innate Immune System, Biochemical Indices, Antioxidant Defense, and Expression of Immunological and Growth-Related Genes. Probiotics Antimicrob Proteins 2023; 15:1342-1354. [PMID: 36074297 DOI: 10.1007/s12602-022-09965-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2022] [Indexed: 10/14/2022]
Abstract
The present study investigated the effects of combined and singular oral administration of Bio-Aqua® with different dosages of sodium diformate (NaDF) on biochemical indices, innate immune responses, antioxidant effects, and expressions of immunological related genes of Caspian brown trout (Salmo trutta caspius). Fingerlings Salmo trutta caspius (n = 1800; initial weight 15 ± 3 g) were randomly allocated into five groups (120 fish group-1 in triplicates). Control diet: without any addition, G1, G2, G3, and G4 received diets containing 0.2 g kg-1 commercial probiotic Bio-Aqua® combined with 0, 0.5, 1.0, and 1.5% NaDF to the basal diet for 60 days according to recommended dosages reported in previous studies. Results indicated that serum bactericidal activity (G3 on day 60 and G1 on day 30) and classic complement in all groups (on day 60) (G1 and G2 on day 30) were significantly elevated (P < 0.05). The serum lysozyme, glucose, globulin, and albumin levels showed no significant differences between all groups compared to the control group (P > 0.05). On days 30 and 60 of the sampling, no significant difference was observed in the amount of superoxide disotase (SOD) and catalase (CAT) between the treatments (P > 0.05) but activity of malondialdehyde (MDA) was lower in G1 than the control (P < 0.05). The expression of the immune-regulating genes IL-10, IL-1β, GTP, FATP, and IGF was significantly improved in all probiotic + acidifier-treated groups (P < 0.05). The current findings showed that mixture of Bio-Aqua® and NaDF (1.5% + pro) is beneficial, as it effectively improves some immune parameters and expression of immunological and growth-related genes in Caspian brown trout.
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Affiliation(s)
- Takavar Mohammadian
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
- Member of Excellence Center of Warm Water Fish Health, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Hossien Momeni
- Department of Clinical Sciences, Faculty of Veterinary Medicine Shahid, Ph.D Student Aquatic Health, Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Kazemi
- Department of Clinical Sciences, Faculty of Veterinary Medicine Shahid, Ph.D Student Aquatic Health, Chamran University of Ahvaz, Ahvaz, Iran
| | - Mehrzad Mesbah
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
- Member of Excellence Center of Warm Water Fish Health, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Melika Abedini
- DVM, Graduated, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mojtaba Zare
- Department of Clinical Sciences, Faculty of Veterinary Medicine Shahid, Ph.D Student Aquatic Health, Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohammad Khosravi
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Elham Osroosh
- Department of Clinical Sciences, Faculty of Veterinary Medicine Shahid, Ph.D Student Aquatic Health, Chamran University of Ahvaz, Ahvaz, Iran
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Deng B, Ding L, Yang S, Tian H, Sun B. A dual-function fluorescent probe for the detection of pH values and formaldehyde. LUMINESCENCE 2023; 38:1647-1653. [PMID: 37408325 DOI: 10.1002/bio.4552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/04/2023] [Accepted: 07/02/2023] [Indexed: 07/07/2023]
Abstract
A dual-function fluorescent probe (Probe 1) was developed in this work for the separate detection of pH value and formaldehyde (HCHO). Probe 1 could recognize HCHO and the pH value from the amino group. The colour of the probe solution was changed from grey blue to light blue with the increase in the pH value, and luminous intensity became larger with the increase in formaldehyde concentration. The curve function relationship between fluorescence intensity and the pH value was also determined. A smartphone containing a colour detector for imaging was used to record the values of the three primary colours (R value, G value, and B value) for the probe solution in formaldehyde. Importantly, there was a linear functional relationship between the B*R/G value with HCHO concentration. Therefore, the probe could be used as a rapid tool for the detection of formaldehyde. More importantly, Probe 1 was successfully used to detect formaldehyde in an actual distilled liquor sample.
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Affiliation(s)
- Bing Deng
- Beijing Key Laboratory of Flavor Chemistry | China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
| | - Leyuan Ding
- Beijing Key Laboratory of Flavor Chemistry | China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
| | - Shaoxiang Yang
- Beijing Key Laboratory of Flavor Chemistry | China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
| | - Hongyu Tian
- Beijing Key Laboratory of Flavor Chemistry | China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
| | - Baoguo Sun
- Beijing Key Laboratory of Flavor Chemistry | China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
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Jiang X, Niu M, Qin K, Hu Y, Li Y, Che C, Wang C, Mu C, Wang H. The shared microbiome in mud crab ( Scylla paramamosain) of Sanmen Bay, China: core gut microbiome. Front Microbiol 2023; 14:1243334. [PMID: 37727291 PMCID: PMC10505715 DOI: 10.3389/fmicb.2023.1243334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/18/2023] [Indexed: 09/21/2023] Open
Abstract
Introduction The mud crab, Scylla paramamosain, holds great commercial significance as a marine crustacean widely cultivated in the Indo-Pacific region. Understanding the core gut microbiota of aquatic animals is crucial for their overall health and growth, yet the core gut microbiota of mud crab remains poorly characterized. Methods In this study, we gathered gut samples from mud crabs across five locations within Sanmen Bay, China. Through the utilization of high-throughput sequencing, we delved into the composition of the gut microbial community and identified the core gut microbiome of mud crab. Results Our results demonstrate that the gut microbial diversity of mud crab did not exhibit significant variation among the five sampling sites, although there were some differences in community richness. At the phylum level, we identified 35 representative phyla, with Firmicutes, Proteobacteria, Bacteroidota, and Campilobacterota as the dominant phyla. Among the 815 representative genera, we discovered 19 core genera, which accounted for 65.45% of the total sequences. These core genera were distributed across 6 phyla, and among them, Photobacterium exhibited the highest average relative abundance. Discussion Photobacterium has probiotic activity and may play a crucial role in enhancing the immune response of the host and maintaining the diversity of the gut microbiota. Moreover, we observed a positive correlation between the relative abundance of core genera and the stability of the gut microbial community. Furthermore, our findings revealed distinct differences in gut microbial composition and specific taxa between the sexes of mud crab. These differences subsequently influenced the functionality of the gut microbial community. Overall, our investigation sheds light on the core gut microbiota of mud crab, emphasizing the importance of core gut microbial communities in maintaining the health and growth of these commercially significant marine crustaceans.
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Affiliation(s)
- Xiaosong Jiang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Mingming Niu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Kangxiang Qin
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Yun Hu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Yuntao Li
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Chenxi Che
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
| | - Chunlin Wang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
- Key Laboratory of Aquacultral Biotechnology, Ministry of Education, Ningbo University, Ningbo, Zhejiang, China
| | - Changkao Mu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
- Key Laboratory of Aquacultral Biotechnology, Ministry of Education, Ningbo University, Ningbo, Zhejiang, China
| | - Huan Wang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang, China
- Key Laboratory of Aquacultral Biotechnology, Ministry of Education, Ningbo University, Ningbo, Zhejiang, China
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Xiao S, Zhang Y, Wu Y, Li J, Dai W, Pang K, Liu Y, Wu R. Bacterial community succession and the enrichment of antibiotic resistance genes on microplastics in an oyster farm. MARINE POLLUTION BULLETIN 2023; 194:115402. [PMID: 37611336 DOI: 10.1016/j.marpolbul.2023.115402] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/24/2023] [Accepted: 08/06/2023] [Indexed: 08/25/2023]
Abstract
Microplastics can be colonized by microorganisms and form plastisphere. However, knowledge of bacterial community succession and the enrichment of antibiotic resistance genes (ARGs) and pathogens on microplastics in aquaculture environments is limited. Here, we conducted a 30-day continuous exposure experiment at an oyster farm. Results showed that the alpha-diversity of communities on most microplastics continuously increased and was higher than in planktonic communities after 14 days. Microplastics could selectively enrich certain bacteria from water which can live a sessile lifestyle and promote colonization by other bacteria. The composition and function of plastisphere communities were distinct from those in the surrounding water and influenced by polymer type and exposure time. Microplastics can enrich ARGs (sul1, qnrS and blaTEM) and harbor potential pathogens (e.g., Pseudomonas aeruginosa). Therefore, microplastic pollution may pose a critical threat to aquaculture ecosystems and human health. Our study provides further insight into the ecological risks of microplastics.
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Affiliation(s)
- Shijie Xiao
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China
| | - Yang Zhang
- The key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Guangzhou 510530, PR China
| | - Yongjie Wu
- The key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Guangzhou 510530, PR China
| | - Jincai Li
- The key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Guangzhou 510530, PR China
| | - Weijie Dai
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Kuo Pang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yun Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China,.
| | - Renren Wu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China,; The key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Guangzhou 510530, PR China,.
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10
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Enespa, Chandra P. Tool and techniques study to plant microbiome current understanding and future needs: an overview. Commun Integr Biol 2022; 15:209-225. [PMID: 35967908 PMCID: PMC9367660 DOI: 10.1080/19420889.2022.2082736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Microorganisms are present in the universe and they play role in beneficial and harmful to human life, society, and environments. Plant microbiome is a broad term in which microbes are present in the rhizo, phyllo, or endophytic region and play several beneficial and harmful roles with the plant. To know of these microorganisms, it is essential to be able to isolate purification and identify them quickly under laboratory conditions. So, to improve the microbial study, several tools and techniques such as microscopy, rRNA, or rDNA sequencing, fingerprinting, probing, clone libraries, chips, and metagenomics have been developed. The major benefits of these techniques are the identification of microbial community through direct analysis as well as it can apply in situ. Without tools and techniques, we cannot understand the roles of microbiomes. This review explains the tools and their roles in the understanding of microbiomes and their ecological diversity in environments.
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Affiliation(s)
- Enespa
- Department of Plant Pathology, School of Agriculture, SMPDC, University of Lucknow, Lucknow, India
| | - Prem Chandra
- Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar (A Central) University, Lucknow, India
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11
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O'Neill EA, Fehrenbach G, Murphy E, Alencar SA, Pogue R, Rowan NJ. Use of next generation sequencing and bioinformatics for profiling freshwater eukaryotic microalgae in a novel peatland integrated multi-trophic aquaculture (IMTA) system: Case study from the Republic of Ireland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158392. [PMID: 36055498 DOI: 10.1016/j.scitotenv.2022.158392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Development of integrated multi-trophic aquaculture (IMTA) systems constitutes a step change in the sustainable production of freshwater fish to meet emerging needs for high-protein foods globally. Recently, there has been a paradigm shift away from harvesting peat as a fuel towards the development of wettable peatland innovation (termed 'paludiculture'), such as aquaculture. Such eco-innovations support carbon sequestration and align with a balanced environmental approach to protecting biodiversity. This novel peatland-based IMTA process in the Irish midlands relies upon natural microalgae for waste treatment, recirculation and water quality where there is no use of pesticides or antibiotics. This novel IMTA system is powered with a wind turbine and the process has 'organic status'; moreover, it does not discharge aquaculture effluent to receiving water. However, there is a significant lack of understanding as to diversity of microalgae in this 'paludiculture'-based IMTA processes. This constitutes the first case study to use conventional microscopy combined with next-generation sequencing and bioinformatics to profile microalgae occurring in this novel IMTA system from pooled samples over a 12 month period in 2020. Conventional microscopy combined with classic identification revealed twenty genera of algae; with Chlorophyta and Charophyta being the most common present. However, algal DNA isolation, 16 s sequencing and bioinformatics revealed a combined total of 982 species from 341 genera across nine phyla from the same IMTA system, which emphasized a significant underestimation in the number and diversity of beneficial or potentially harmful algae in the IMTA-microbiome. These new methods also yield rich data that can be used by digital technologies to transform future monitoring and performance of the IMTA system for sustainability. The findings of this study align with many sustainability development goals of the United Nations including no poverty, zero hunger, good health and well-being, responsible consumption and production, climate change, and life below water.
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Affiliation(s)
- Emer A O'Neill
- Bioscience Research Institute, Technological University of the Shannon: Midlands Midwest, University Road, Athlone, Co. Westmeath, Ireland.
| | - Gustavo Fehrenbach
- Bioscience Research Institute, Technological University of the Shannon: Midlands Midwest, University Road, Athlone, Co. Westmeath, Ireland
| | - Emma Murphy
- Bioscience Research Institute, Technological University of the Shannon: Midlands Midwest, University Road, Athlone, Co. Westmeath, Ireland
| | - Sérgio A Alencar
- Universidade Católica de Brasilia, QS 7 LOTE 1 - Taguatinga, Brasília, DF 71966-700, Brazil
| | - Robert Pogue
- Bioscience Research Institute, Technological University of the Shannon: Midlands Midwest, University Road, Athlone, Co. Westmeath, Ireland; Universidade Católica de Brasilia, QS 7 LOTE 1 - Taguatinga, Brasília, DF 71966-700, Brazil
| | - Neil J Rowan
- Bioscience Research Institute, Technological University of the Shannon: Midlands Midwest, University Road, Athlone, Co. Westmeath, Ireland
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12
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Shen XF, Xu YP, Tong XQ, Huang Q, Zhang S, Gong J, Chu FF, Zeng RJ. The mechanism of carbon source utilization by microalgae when co-cultivated with photosynthetic bacteria. BIORESOURCE TECHNOLOGY 2022; 365:128152. [PMID: 36265788 DOI: 10.1016/j.biortech.2022.128152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Microalgae-photosynthetic bacteria (PSB) co-culture, which is promising for wastewater treatment and lipid production, is lacking of study. In this work, the combinations of 3 microalgae and 3 PSB strains were firstly screened and then different inoculation ratios of the co-cultures were investigated. It was found the best promotion was Chlorella pyrenoidosa/Rhodobacter capsulatus co-culture (1:1), where the biomass productivity, acetate assimilation rate and lipid productivity were 1.64, 1.61 and 2.79 times than that of the sum of pure microalgae and PSB cultures, respectively. Meanwhile, the inoculation ratio significantly affected the growth rate and lipid productivity of co-culture systems. iTRAQ analysis showed that PSB played a positive effect on acetate assimilation, TCA cycle and glyoxylate cycle of microalgae, but decreased the carbon dioxide utilization and photosynthesis, indicating PSB promoted the microalgae metabolism of organic carbon utilization and weakened inorganic carbon utilization. These findings provide in-depth understanding of carbon utilization in microalgae-PSB co-culture.
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Affiliation(s)
- Xiao-Fei Shen
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Ya-Ping Xu
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Xiao-Qin Tong
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Qi Huang
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Shuai Zhang
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Jing Gong
- School of Ecology and Environment, Anhui Normal University, Anhui 241000, PR China
| | - Fei-Fei Chu
- College of Standardization, China Jiliang University, Zhejiang 310018, PR China
| | - Raymond Jianxiong Zeng
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fujian 350002, PR China.
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13
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Du Y, Xu W, Wu T, Li H, Hu X, Chen J. Enhancement of growth, survival, immunity and disease resistance in Litopenaeus vannamei, by the probiotic, Lactobacillus plantarum Ep-M17. FISH & SHELLFISH IMMUNOLOGY 2022; 129:36-51. [PMID: 36041627 DOI: 10.1016/j.fsi.2022.08.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Green ecological prevention and control technology is a hot spot for aquatic disease research in recent years, and lactic acid bacteria is an important type of probiotic widely used in aquaculture. In this study, a strain of Lactobacillus plantarum Ep-M17 was isolated from the intestine of healthy grouper, which showed good antibacterial activity in vitro. To investigate the application prospects of Ep-M17 as a probiotic, we added it to the diet and fed Litopenaeus vannamei, and then detected its influence on the growth performance, survival rate, disease resistance, intestinal tissue structure, gene transcription, and the flora in the gut of shrimp. The results showed that feeding Ep-M17 increased the specific growth rate, reduced the feed conversion rate, improved the survival rate, and achieved a 76.9% relative protection rate after Vibrio parahaemolyticus E1 infection in shrimp. Histological examination displayed that Ep-M17-fed shrimp had a thick intestinal villi layer, which enhanced the protection against pathogen damage. It was also found that Ep-M17 significantly increased the activity levels of immune and digestion-related enzymes SOD, CAT, TRY, AKP, LIP, and AMS in the gut of shrimp, especially after V. parahaemolyticus E1 infection, these enzymes increased significantly higher than that of control. Transcriptome analysis revealed that Ep-M17 activated significantly differential expression of genes in immune, nutritional, metabolic, and Signal Transduction-related pathways in the gut of shrimp. In addition, Ep-M17 enriched the bacterial diversity of the shrimp gut, with a significant increase in many low-abundance bacterial species, a significant decrease in the number of pathogenic bacteria like Vibrio, and a significant increase in the number of beneficial bacteria. The above results evaluated that Ep-M17 as a potential probiotic can promote the growth and improve the disease resistance of shrimp by regulating the nutritional immune response and flora of the intestine.
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Affiliation(s)
- Yang Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China
| | - Wenlong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China
| | - Ting Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China
| | - Hao Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China
| | - Xiaoman Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, 315211, China.
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14
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Rojas MVR, Alonso DP, Dropa M, Razzolini MTP, de Carvalho DP, Ribeiro KAN, Ribolla PEM, Sallum MAM. Next-Generation High-Throughput Sequencing to Evaluate Bacterial Communities in Freshwater Ecosystem in Hydroelectric Reservoirs. Microorganisms 2022; 10:1398. [PMID: 35889116 PMCID: PMC9322053 DOI: 10.3390/microorganisms10071398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 02/01/2023] Open
Abstract
The quality of aquatic ecosystems is a major public health concern. The assessment and management of a freshwater system and the ecological monitoring of microorganisms that are present in it can provide indicators of the environment and water quality to protect human and animal health. with bacteria is. It is a major challenge to monitor the microbiological bacterial contamination status of surface water associated with anthropogenic activities within rivers and freshwater reservoirs. Understanding the composition of aquatic microbial communities can be beneficial for the early detection of pathogens, improving our knowledge of their ecological niches, and characterizing the assemblages of microbiota responsible for the degradation of contaminants and microbial substrates. The present study aimed to characterize the bacterial microbiota of water samples collected alongside the Madeira River and its small tributaries in rural areas near the Santo Antonio Energia hydroelectric power plant (SAE) reservoir in the municipality of Porto Velho, Rondonia state, Western Brazil. An Illumina 16s rRNA metagenomic approach was employed and the physicochemical characteristics of the water sample were assessed. We hypothesized that both water metagenomics and physicochemical parameters would vary across sampling sites. The most abundant genera found in the study were Acinetobacter, Deinococcus, and Pseudomonas. PERMANOVA and ANCOM analysis revealed that collection points sampled at the G4 location presented a significantly different microbiome compared to any other group, with the Chlamidomonadaceae family and Enhydrobacter genus being significantly more abundant. Our findings support the use of metagenomics to assess water quality standards for the protection of human and animal health in this microgeographic region.
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Affiliation(s)
- Martha Virginia R. Rojas
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil; (M.V.R.R.); (M.A.M.S.)
- FUNDUNESP—Fundação para o Desenvolvimento da UNESP, São Paulo 01009-906, Brazil
| | - Diego Peres Alonso
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil; (M.V.R.R.); (M.A.M.S.)
- Instituto de Biotecnologia da UNESP (IBTEC-Campus Botucatu), São Paulo 18607-440, Brazil;
| | - Milena Dropa
- Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil; (M.D.); (M.T.P.R.)
| | - Maria Tereza P. Razzolini
- Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil; (M.D.); (M.T.P.R.)
| | | | | | | | - Maria Anice M. Sallum
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil; (M.V.R.R.); (M.A.M.S.)
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15
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Kulwa F, Li C, Zhang J, Shirahama K, Kosov S, Zhao X, Jiang T, Grzegorzek M. A new pairwise deep learning feature for environmental microorganism image analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:51909-51926. [PMID: 35257344 DOI: 10.1007/s11356-022-18849-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Environmental microorganism (EM) offers a highly efficient, harmless, and low-cost solution to environmental pollution. They are used in sanitation, monitoring, and decomposition of environmental pollutants. However, this depends on the proper identification of suitable microorganisms. In order to fasten, lower the cost, and increase consistency and accuracy of identification, we propose the novel pairwise deep learning features (PDLFs) to analyze microorganisms. The PDLFs technique combines the capability of handcrafted and deep learning features. In this technique, we leverage the Shi and Tomasi interest points by extracting deep learning features from patches which are centered at interest points' locations. Then, to increase the number of potential features that have intermediate spatial characteristics between nearby interest points, we use Delaunay triangulation theorem and straight line geometric theorem to pair the nearby deep learning features. The potential of pairwise features is justified on the classification of EMs using SVMs, Linear discriminant analysis, Logistic regression, XGBoost and Random Forest classifier. The pairwise features obtain outstanding results of 99.17%, 91.34%, 91.32%, 91.48%, and 99.56%, which are the increase of about 5.95%, 62.40%, 62.37%, 61.84%, and 3.23% in accuracy, F1-score, recall, precision, and specificity respectively, compared to non-paired deep learning features.
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Affiliation(s)
- Frank Kulwa
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, People's Republic of China
| | - Chen Li
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, People's Republic of China.
| | - Jinghua Zhang
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, People's Republic of China
| | - Kimiaki Shirahama
- Department of Informatics, Kindai University, Osaka, Higashiosaka, Japan
| | - Sergey Kosov
- Faculty of Data Engineering, Jacobs University Bremen, Bremen, Germany
| | - Xin Zhao
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, People's Republic of China
| | - Tao Jiang
- Control Engineering College, Chengdu University of Information Technology, Chengdu, China
| | - Marcin Grzegorzek
- Institute for Medical Informatics, University of Lübeck, 23538, Lübeck, Germany
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16
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Transcription Factor-Based Biosensors for Detecting Pathogens. BIOSENSORS 2022; 12:bios12070470. [PMID: 35884273 PMCID: PMC9312912 DOI: 10.3390/bios12070470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 12/23/2022]
Abstract
Microorganisms are omnipresent and inseparable from our life. Many of them are beneficial to humans, while some are not. Importantly, foods and beverages are susceptible to microbial contamination, with their toxins causing illnesses and even death in some cases. Therefore, monitoring and detecting harmful microorganisms are critical to ensuring human health and safety. For several decades, many methods have been developed to detect and monitor microorganisms and their toxicants. Conventionally, nucleic acid analysis and antibody-based analysis were used to detect pathogens. Additionally, diverse chromatographic methods were employed to detect toxins based on their chemical and structural properties. However, conventional techniques have several disadvantages concerning analysis time, sensitivity, and expense. With the advances in biotechnology, new approaches to detect pathogens and toxins have been reported to compensate for the disadvantages of conventional analysis from different research fields, including electrochemistry, nanotechnology, and molecular biology. Among them, we focused on the recent studies of transcription factor (TF)-based biosensors to detect microorganisms and discuss their perspectives and applications. Additionally, the other biosensors for detecting microorganisms reported in recent studies were also introduced in this review.
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17
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Characterization of the Bacterial Community in the Ecosystem of Sea Cucumber (Apostichopus japonicus) Culture Ponds: Correlation and Specificity in Multiple Media. WATER 2022. [DOI: 10.3390/w14091386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The bacterial community is an essential component of the aquaculture pond ecosystem, which not only improves and restores the aquaculture environment but also maintains a stable ecological equilibrium with the external environment. Here, Illumina 16S rRNA sequencing was conducted to characterize the bacterial community in the ecosystem of sea cucumber Apostichopus japonicus culture ponds, as well as their correlation with overall community structures. The alpha-diversities of bacterial community among water, sediment, and the gut of A. japonicus were consistent across culture ponds from different areas. Specifically, the richness and diversity of bacterial communities were the highest in sediment, followed by the gut, and the lowest in water. The dominant bacterial community among multiple media was Proteobacteria, which occupies a large proportion of the bacterial community structure, followed by Bacteroidetes and Verrucomicrobia. Highly similar bacterial community structures were present in multiple media among different areas, which provides evidence for deterministic natural evolution. Meanwhile, there was a significant difference (p < 0.05) in the specific bacterial communities across the multiple media. The specific functions of the multiple media in the ecosystem are the main reason for the formation of different bacterial communities. This work demonstrates that bacterial communities are the result of natural evolution within the ecosystem during adaptation to the required environment.
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18
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Xuan H, Gao P, Du B, Geng L, Wang K, Huang K, Zhang J, Huang T, Shu C. Characterization of Microorganisms from Protaetia brevitarsis Larva Frass. Microorganisms 2022; 10:microorganisms10020311. [PMID: 35208766 PMCID: PMC8880812 DOI: 10.3390/microorganisms10020311] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 12/10/2022] Open
Abstract
Decomposers play an important role in the biogeochemical cycle. Protaetia brevitarsis larvae (PBLs) can transform wastes into frass rich in humic acid (HA) and microorganisms, which may increase the disease resistance of plants and promote plant growth. Beyond HA, the microorganisms may also contribute to the biostimulant activity. To address this hypothesis, we investigated the potential microbial community in the PBL frass samples and elucidated their functions of disease resistance and plant growth promotion. High-throughput sequencing analysis of four PBL-relevant samples showed that their frass can influence the microbial community of the surrounding environment. Further analysis showed that there were many microorganisms beneficial to agriculture, such as Bacillus. Therefore, culturable Bacillus microbes were isolated from frass, and 16S rDNA gene analysis showed that Bacillus subtilis was the dominant species. In addition, some Bacillus microorganisms isolated from the PBL frass had antibacterial activities against pathogenic fungi. The plant growth promotion pot experiment also proved that some strains promote plant growth. In conclusion, this study demonstrated that the microorganisms in the PBL frass are conducive to colonizing the surrounding organic matrix, which will help beneficial microbes to increase the disease resistance of plants and promote plant growth.
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Affiliation(s)
- Huina Xuan
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Biopesticide and Chemical Biology of Ministry of Education & Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops & Biopesticide Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Peiwen Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Baohai Du
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Lili Geng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Kui Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Kun Huang
- Genliduo Bio-Tech Corporation Ltd., Xingtai 054000, China;
| | - Jie Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
| | - Tianpei Huang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Biopesticide and Chemical Biology of Ministry of Education & Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops & Biopesticide Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- Correspondence: (T.H.); (C.S.)
| | - Changlong Shu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (P.G.); (B.D.); (L.G.); (K.W.); (J.Z.)
- Correspondence: (T.H.); (C.S.)
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19
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Huang Z, Hou D, Zhou R, Zeng S, Xing C, Wei D, Deng X, Yu L, Wang H, Deng Z, Weng S, Ning D, Xiao C, Yan Q, Zhou J, He Z, He J. Environmental Water and Sediment Microbial Communities Shape Intestine Microbiota for Host Health: The Central Dogma in an Anthropogenic Aquaculture Ecosystem. Front Microbiol 2021; 12:772149. [PMID: 34795658 PMCID: PMC8593368 DOI: 10.3389/fmicb.2021.772149] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/08/2021] [Indexed: 12/22/2022] Open
Abstract
From increasing evidence has emerged a tight link among the environment, intestine microbiota, and host health status; moreover, the microbial interaction in different habitats is crucial for ecosystems. However, how the environmental microbial community assembly governs the intestinal microbiota and microbial communities of multiple habitats contribute to the metacommunity remain elusive. Here, we designed two delicate experiments from temporal and spatial scales in a shrimp culture pond ecosystem (SCPE). Of the SCPE metacommunity, the microbial diversity was mainly contributed to by the diversity of–βIntraHabitats and βInterHabitats, and water and sediment communities had a large contribution to the shrimp intestine community as shown by SourceTracker and Sloan neutral community model analyses. Also, phylogenetic bin-based null model results show that microbial assembly of three habitats in the SCPE appeared to be largely driven by stochastic processes. These results enrich our understanding of the environment–intestinal microbiota–host health closely linked relationship, making it possible to be the central dogma for an anthropogenic aquaculture ecosystem. Our findings enhance the mechanistic understanding of microbial assembly in the SCPE for further analyzing metacommunities, which has important implications for microbial ecology and animal health.
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Affiliation(s)
- Zhijian Huang
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Dongwei Hou
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Renjun Zhou
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shenzheng Zeng
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Chengguang Xing
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Dongdong Wei
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xisha Deng
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Lingfei Yu
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hao Wang
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhixuan Deng
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Daliang Ning
- Department of Microbiology and Plant Biology, Institute for Environmental Genomics, School of Civil Engineering and Environmental Sciences, The University of Oklahoma, Norman, OK, United States
| | - Chuanle Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Qingyun Yan
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Jizhong Zhou
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Department of Microbiology and Plant Biology, Institute for Environmental Genomics, School of Civil Engineering and Environmental Sciences, The University of Oklahoma, Norman, OK, United States
| | - Zhili He
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Jianguo He
- State Key Laboratory of Biocontrol, Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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20
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Hou D, Zhou R, Zeng S, Wei D, Deng X, Xing C, Weng S, He J, Huang Z. Stochastic processes shape the bacterial community assembly in shrimp cultural pond sediments. Appl Microbiol Biotechnol 2021; 105:5013-5022. [PMID: 34097120 DOI: 10.1007/s00253-021-11378-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/06/2021] [Accepted: 05/27/2021] [Indexed: 12/19/2022]
Abstract
Sediment environments harbor a repertoire of microorganisms that contribute to animal health and the microecosystem in aquaculture ecosystems, but their community diversity and the potential factors that control it remain unclear. Here, we applied 16S rRNA gene amplicon sequencing to investigate bacterial diversity and assembly mechanisms in the sediments of shrimp cultural ponds at the mesoscale. Our results showed that sediment bacterial communities contained 10,333 operational taxonomic units (OTUs) but had only 34 core OTUs and that the relative abundances of these core OTUs were significantly correlated with the physicochemical properties of the sediments. Proteobacteria, Bacteroidetes, Chloroflexi, Cyanobacteria, Acidobacteria, Firmicutes, Actinobacteria, Ignavibacteriae, Spirochaetae and Planctomycetes were the ten most abundant bacterial phyla. Notably, some opportunistic pathogens (e.g. Vibrio and Photobacterium) and potential functional microbes (e.g. Nitrospira, Nitrosomonas, Desulfobulbus and Desulfuromusa) were widely distributed in shrimp cultural pond sediments. More importantly, we found that there was a significant negative but weak distance-decay relationship among bacterial communities in shrimp culture pond sediments at the mesoscale, and that the spatial turnover of these bacterial communities appeared to be largely driven by stochastic processes. Additionally, environmental factors, such as pH and total nitrogen, also played important roles in influencing the sediment bacterial structure. Our findings enhance our understanding of microbial ecology in aquatic ecosystems and facilitate sediment microbiota management in aquaculture. KEY POINTS: • Core bacterial taxa in cultural pond sediments contributed to the shrimp health and element cycling. • There was a significant negative distance-decay relationship among bacterial communities in shrimp culture pond sediments at the mesoscale, and its spatial turnover appeared to be largely driven by stochastic processes. • Environmental factors (e.g. pH and total nitrogen) played important roles in influencing bacterial structure in shrimp cultural pond sediments.
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Affiliation(s)
- Dongwei Hou
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Renjun Zhou
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Shenzheng Zeng
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Dongdong Wei
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Xisha Deng
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Chengguang Xing
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Shaoping Weng
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Jianguo He
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China. .,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
| | - Zhijian Huang
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
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21
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Abstract
Intensive fish farming through aquaculture is vulnerable to infectious diseases that can increase fish mortality and damage the productivity of aquaculture farms. To prevent infectious diseases, malachite green (MG) has been applied as a veterinary drug for various microbial infections in aquaculture settings worldwide. However, little is known regarding the consequences of MG and MG-degrading bacteria (MGDB) on microbial communities in milkfish culture ponds (MCPs). In this study, small MCPs were used as a model system to determine the effects of MG on the microbial communities in MCPs. The addition of MG led to cyanobacterial blooms in the small MCP. The addition of MGDB could not completely reverse the effects of MG on microbial communities. Cyanobacterial blooms were not prevented. Microbial communities analyzed by next generation sequencing revealed that cyanobacterial blooms may be due to increase of nitrogen cycle (including nitrogen fixation, nitrate reduction and anammox) associated microbial communities, which raised the levels of ammonium in the water of the small MCP. The communities of anoxygenic phototrophic bacteria (beneficial for aquaculture and aquatic ecosystems) decreased after the addition of MG. The results of this investigation provide valuable insights into the effects of MG in aquaculture and the difficulties of bioremediation for aquatic environments polluted by MG.
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22
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Wen B, Liu JH, Zhang Y, Zhang HR, Gao JZ, Chen ZZ. Community structure and functional diversity of the plastisphere in aquaculture waters: Does plastic color matter? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 740:140082. [PMID: 32927571 DOI: 10.1016/j.scitotenv.2020.140082] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/01/2020] [Accepted: 06/07/2020] [Indexed: 05/26/2023]
Abstract
Microplastics (MPs) serve as a niche for colonization of biofilm-forming microorganisms, termed as plastisphere. Distinct microbial assemblages between MPs and surrounding waters have been well reported, but little is known about driving factors affecting biofilm development on plastic surfaces. Here, to investigate the influence of plastic colors on microbial assemblages, we performed a biofilm incubation experiment, in an aquaculture pond, using MPs in colors (blue, yellow and transparent) that commonly found in the aquatic environments for 30 days. We examined the community structure and function of plastisphere by using 16S rRNA sequencing. The results showed that plastisphere communities exhibited a higher diversity and evenness compared with the water community. MPs especially the blue MPs had more unique species, which might indicate a plastic color/additive-driven selection of microorganisms on MPs. A significant distinctness in bacterial community composition between MPs and the water was found, mainly caused by large amounts of Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium but trace amounts of Microcystis_PCC-7914 on MPs. Due primarily to rich in Aquabacterium but lack of norank_f__norank_o__1-20 on blue MPs than on transparent and yellow MPs, a clear separation between plastisphere communities of three colors of MPs was also observed. Moreover, compared with the water column, the metabolic pathways, e.g., transport and metabolism of amino acid, carbohydrate and inorganic ion, on plastisphere especially those of blue MPs were generally enriched. Biofilms colonizing on blue MPs appeared to have a higher functional diversity than those on transparent or yellow MPs. These results might suggest that plastic colors have impacts on the community structure and functional diversity of plastisphere.
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Affiliation(s)
- Bin Wen
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Jun-Heng Liu
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Yuan Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Hao-Ran Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Jian-Zhong Gao
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China.
| | - Zai-Zhong Chen
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China.
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23
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Rhee C, Kim H, Emmanuel SA, Kim HG, Won S, Bae J, Bai SC, Koh SC. Probiotic effects of mixture of Groenewaldozyma salmanticensis and Gluconacetobacter liquefaciens on growth and immune responses in Paralichthys olivaceus. Lett Appl Microbiol 2020; 70:431-439. [PMID: 32031273 DOI: 10.1111/lam.13282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 01/10/2020] [Accepted: 02/04/2020] [Indexed: 02/06/2023]
Abstract
This study was performed to evaluate the effects of dietary probiotics on growth, non-specific immune responses and disease resistance in olive flounder, Paralichthys olivaceus. During 8 weeks, the fish were fed the five experimental diets such as a basal commercial diet (CON), oxytetracycline (OTC) and three basal diets containing Bacillus subtilis (BS), a commercial microbial product (CES) and a mixture of yeast and bacterium (PI), respectively. Fish fed all the probiotics diets and OTC showed a significantly higher growth than fish-fed CON (P < 0·05). Fish-fed PI had a significantly higher nitroblue tetrazolium activity, whereas fish-fed CES showed a higher lysozyme level (P < 0·05). A 7-day challenge test also showed that fish-fed PI had a cumulative survival rate equivalent to that of fish-fed OTC (P < 0·05). Moreover, the diet (PI) appeared to increase the diversity of microbial community in the fish. All these results suggest that the probiotics diet could function as a potential antibiotic replacer in the olive flounder. SIGNIFICANCE AND IMPACT OF THE STUDY: This study is unique in revealing that a diet mixture of yeast, Groenewaldozyma salmanticensis and bacterium Gluconacetobacter liquefaciens can enhance growth, innate immunity and diversity of microbial community including dominant species in the olive flounder. All these indicate that the diet mixture could function as a potential antibiotic replacer in one of the most commercially important fisheries in South Korea.
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Affiliation(s)
- C Rhee
- Department of Energy Engineering, Future Convergence Technology Research Institute, Gyeongnam National University of Science and Technology, Jinju, Republic of Korea
| | - H Kim
- Department of Marine Bio-materials and Aquaculture/Feeds and Foods Nutrition Research Center, Pukyong National University, Busan, Republic of Korea
| | - S A Emmanuel
- Department of Environmental Engineering, Korea Maritime and Ocean University, Busan, Republic of Korea
| | - H-G Kim
- Bayo Inc., Jinju, Republic of Korea
| | - S Won
- Department of Marine Bio-materials and Aquaculture/Feeds and Foods Nutrition Research Center, Pukyong National University, Busan, Republic of Korea
| | - J Bae
- Department of Marine Bio-materials and Aquaculture/Feeds and Foods Nutrition Research Center, Pukyong National University, Busan, Republic of Korea
| | - S C Bai
- Department of Marine Bio-materials and Aquaculture/Feeds and Foods Nutrition Research Center, Pukyong National University, Busan, Republic of Korea
| | - S-C Koh
- Department of Environmental Engineering, Korea Maritime and Ocean University, Busan, Republic of Korea
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24
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Feed Types Driven Differentiation of Microbial Community and Functionality in Marine Integrated Multitrophic Aquaculture System. WATER 2019. [DOI: 10.3390/w12010095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Integrated multi trophic aquaculture (IMTA) improves the production of aquatic animals by promoting nutrient utilization through different tropical levels. Microorganisms play an important role in elements cycling, energy flow and farmed-species health. The aim of this study was to evaluate how feed types, fresh frozen fish diet (FFD) or formulated diet (FD), influence the microbial community diversity and functionality in both water and sediment in a marine IMTA system. Preferable water quality, higher animal yields and higher cost efficiency were achieved in the FD pond. Feed types changed the pond bacterial community distribution, especially in the rearing water. The FFD pond was dominated with Cyanobacteria in the water, which played an important role in nitrogen fixation through photosynthesis due to the high nitrogen input of the frozen fish diet. The high carbohydrate composition in the formulated diet triggered higher metabolic pathways related to carbon and lipid metabolism in the water of the FD pond. Sediment had significantly higher microbial diversity than the rearing water. In sediment, the dominating genus, Sulfurovum and Desulfobulbus, were found to be positively correlated by network analysis, which had similar functionality in sulfur transformation. The relatively higher rates of antibiotic biosynthesis in the FFD sediment might be related to the pathogenic bacteria introduced by the trash fish diet. The difference in microbial community composition and metabolic pathways may be associated with the different pathways for nutrient cycling and animal growth performance. The formulated diet was determined to be more ecologically and economically sustainable than the frozen fish diet for marine IMTA pond systems.
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25
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Sun F, Wang C, Chen L, Weng G, Zheng Z. The intestinal bacterial community of healthy and diseased animals and its association with the aquaculture environment. Appl Microbiol Biotechnol 2019; 104:775-783. [PMID: 31781816 DOI: 10.1007/s00253-019-10236-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/24/2019] [Accepted: 11/04/2019] [Indexed: 11/24/2022]
Abstract
Although increasing levels of attention have been targeted towards aquaculture-associated bacteria, the bacterial community of animal intestines and its relationship with the aquaculture environment need to be further investigated. In this study, we used high-throughput sequencing to analyze the bacterial community of pond water, sediment, and the intestines of diseased and healthy animals. Our data showed that Proteobacteria, Firmicutes, Cyanobacteria, and Bacteroidetes were the dominant taxa of bacteria across all samples and accounted for more than 90% of the total sequence. Difference analysis and Venn diagrams showed that most of the intestinal bacterial OTUs (operational taxonomic units) of diseased and healthy animals were the same as those of sediment and water, indicating that the aquaculture environment was the main source of intestinal bacteria. Compared with healthy animals, a considerable reduction of OTUs was evident in diseased animals. Welch's t test showed that the dominant bacterial taxa in sediment, water, and animal intestine were significantly different (p < 0.05) and each had its own unique dominant microorganisms. In addition, differences between the intestinal bacteria of healthy and diseased animals were represented by potential probiotics and pathogens, such as Bacillus, Vibrio, Oceanobacillus, and Lactococcus. Principal component analysis (PcoA) showed that a similar environment shaped a similar microbial structure. There was a large difference in the spectrum of intestinal bacteria in diseased animals; furthermore, the spectrum of intestinal bacteria in diseased animals was very different from the environment than in healthy animals. This study provides a theoretical basis for a relationship between the intestinal bacteria of healthy and diseased animals and the environment and provides guidance for environmental regulation and disease prevention in aquaculture areas.
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Affiliation(s)
- Fulin Sun
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510000, China. .,Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Shenzhen, 518000, China.
| | - Chunzhong Wang
- Putian Institute of Aquaculture Science of Fujian Province, Putian, 351100, China.
| | - Lijuan Chen
- Putian Tian Ran Xing Agriculture Development Co. Ltd., Putian, 351100, Fujian, China
| | - Guozhu Weng
- Putian Customs Comprehensive Technical Service Center, Putian, 351100, China
| | - Zhipeng Zheng
- Putian Tian Ran Xing Agriculture Development Co. Ltd., Putian, 351100, Fujian, China
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Chang BV, Chang YT, Chao WL, Yeh SL, Kuo DL, Yang CW. Effects of sulfamethoxazole and sulfamethoxazole-degrading bacteria on water quality and microbial communities in milkfish ponds. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:305-316. [PMID: 31158659 DOI: 10.1016/j.envpol.2019.05.136] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/24/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
Intensive farming practices are typically used for aquaculture. To prevent disease outbreaks, antibiotics are often used to reduce pathogenic bacteria in aquaculture animals. However, the effects of antibiotics on water quality and microbial communities in euryhaline fish culture ponds are largely unknown. The aim of this study was to investigate the interactions between sulfamethoxazole (SMX), water quality and microbial communities in milkfish (Chanos chanos) culture ponds. The results of small-scale milkfish pond experiments indicated that the addition of SMX decreased the abundance of ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB) and photosynthetic bacteria. Consequently, the levels of ammonia and total phosphorus in the fish pond water increased, causing algal and cyanobacterial blooms to occur. In contrast, the addition of the SMX-degrading bacterial strains A12 and L effectively degraded SMX and reduced the levels of ammonia and total phosphorus in fish pond water. Furthermore, the abundances of AOB, NOB and photosynthetic bacteria were restored, and algal and cyanobacterial blooms were inhibited. This study demonstrate the influences of SMX on water quality and microbial community composition in milkfish culture ponds. Moreover, the use of the bacterial strains A12 and L as dual function (bioaugmentation and water quality maintenance) beneficial bacteria was shown to provide an effective approach for the bioremediation of SMX-contaminated euryhaline milkfish culture ponds.
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Affiliation(s)
- Bea-Ven Chang
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Yi-Tang Chang
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Wei-Liang Chao
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Shinn-Lih Yeh
- Mariculture Research Center, Council of Agriculture, Tainan City, Taiwan
| | - Dong-Lin Kuo
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Chu-Wen Yang
- Department of Microbiology, Soochow University, Taipei, Taiwan.
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27
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Wang J, Chon K, Ren X, Kou Y, Chae KJ, Piao Y. Effects of beneficial microorganisms on nutrient removal and excess sludge production in an anaerobic-anoxic/oxic (A 2O) process for municipal wastewater treatment. BIORESOURCE TECHNOLOGY 2019; 281:90-98. [PMID: 30802820 DOI: 10.1016/j.biortech.2019.02.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
The performances of anaerobic-anoxic-oxic processes with (A2O-B) and without (A2O-C) beneficial microorganisms were compared to provide valuable insights on how they are affected by changes in the microbial biomass and community composition. Although the A2O-B process showed lower concentrations of mixed liquor suspended solids and mixed liquor volatile suspended solids than the A2O-C process under identical operating conditions, the A2O-B process was more effective for the removal of organic materials and nutrients compared with the A2O-C process. Furthermore, the compressibility and settleability of the activated sludge were significantly better in the A2O-B process than in the A2O-C process due to the enhanced decomposition of extracellular polymeric substances. These results indicated that the inoculation of beneficial microorganisms may increase the proportions of microorganisms in relation to the removal of organic materials, nutrients (i.e., Zoogloea, Dechloromonas, Nitrospira, and Nitrosomonas) and the reduction of the excess sludge (i.e., Proteobacteria and Bacteroidetes).
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Affiliation(s)
- Jing Wang
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture (BUCEA), Beijing 100044, China
| | - Kangmin Chon
- Department of Environmental Engineering, College of Engineering, Kangwon National University, Kangwondaehak-gil, 1, Chuncheon-si, Gangwon-do 24341, Republic of Korea
| | - Xianghao Ren
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture (BUCEA), Beijing 100044, China.
| | - Yingying Kou
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture (BUCEA), Beijing 100044, China
| | - Kyu-Jung Chae
- Department of Environmental Engineering, College of Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 606-791, South Korea
| | - Yuanshan Piao
- Key Laboratory of Ground Water Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, 2519 Jiefang Road, Changchun 130021, China
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28
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Distribution of Pseudomonas fluorescens and Aeromonas hydrophila Bacteria in a Recirculating Aquaculture System during Farming of European Grayling (Thymallus thymallus L.) Broodstock. WATER 2019. [DOI: 10.3390/w11020376] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pseudomonas fluorescens and Aeromonas hydrophila bacteria are opportunistic pathogens that occur naturally in the aquatic environment and in the gut flora of healthy fish. Both species can pose a serious threat for fish that are highly sensitive to water pollution. The aim of this study was to determine the extent to which the amount of administered fish feed and fish biomass affect the distribution and abundance of Ps. fluorescens and A. hydrophila bacteria in a recirculating aquaculture system (RAS) during farming of European grayling (Thymallus thymallus L.) broodstock. A total of 68 water samples from the inflow, two rearing tanks and the outflow as well as 17 feed samples were collected and analyzed separately. Bacterial populations were analyzed by the culture-dependent method and a molecular method (fluorescence in situ hybridization, FISH) to detect culturable strains and viable but non-culturable strains, respectively. Fish biomass, feed and 16 water quality parameters (temperature, pH, concentration of dissolved oxygen, oxygen saturation, five-day biochemical oxygen demand (BOD5), total phosphorus, total organic phosphorus and nitrogen, orthophosphates, total nitrogen, nitrite and nitrate nitrogen, ammonia nitrogen, ammonium nitrogen, total suspended solids, and total organic carbon) were the explanatory factors. Statistically significant differences (RM-ANOVA, p ≤ 0.05) were stated in bacterial abundance in samples from the inflow, rearing tanks and the outflow. Water samples from the RAS were abundantly colonized by non-culturable Ps. fluorescens and A. hydrophila bacteria. Feed was not a source of bacteria, but a redundancy analysis (RDA) revealed that the amount of feed, fish biomass, BOD5, and total suspended solids and total organic carbon were positively correlated in both Ps. fluorescens and A. hydrophila. These parameters also influenced the distribution of both potentially pathogenic bacterial populations and contributed to the bacterial contamination of water in the RAS. Our results are particularly valuable for aquacultures that help to replenish wild stocks and rebuild populations of threatened species in natural aquatic environments.
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Brito JMD, Ferreira AHC, Santana Júnior HA, Oliveira APA, Santos CHL, Oliveira LTS. DESEMPENHO ZOOTÉCNICO DE JUVENIS DE TILÁPIAS DO NILO (Oreochromis niloticus) ALIMENTADOS COM CEPAS PROBIÓTICAS E SUBMETIDOS A DESAFIO SANITÁRIO. CIÊNCIA ANIMAL BRASILEIRA 2019. [DOI: 10.1590/1809-6891v20e-37348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo O surgimento de doenças ocasionadas pelo estresse durante o cultivo de juvenis vem tornando-se comum devido à intensificação dos sistemas de produção, ocorrendo elevada mortalidade e prejuízos econômicos ao produtor. Mediante esse contexto, os probióticos que são um conjunto de micro-organismos vivos, estão sendo utilizados devido à sua capacidade de estabelecer-se e multiplicar-se no intestino do hospedeiro e promover o equilíbrio da microbiota, contribuindo com a sanidade e o desempenho dos peixes principalmente nas primeiras semanas de vida. Objetivou-se avaliar o desempenho de juvenis de tilápias do Nilo alimentados com cepas probióticas e submetidos a desafio sanitário. Foram utilizados 180 juvenis, distribuídos em delineamento inteiramente casualizado, com três tratamentos, quatro repetições e 15 peixes como unidade experimental. Os tratamentos foram: T1 - peixes cultivados em água limpa sem o uso de probiótico; T2 - peixes cultivados em água sob desafio e sem o uso de probiótico e T3 - peixes cultivados em água sob desafio e com o uso de probiótico. Não houve efeito significativo (P>0,05) nos parâmetros de desempenho zootécnico, no consumo de ração e sobrevivência. A utilização de probiótico na ração não mostrou-se hábil para proporcionar melhorias no desempenho, consumo de ração e na sobrevivência de juvenis de tilápias do Nilo no período de 30 dias de cultivo.
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Li Y, Qiu F, Yan H, Wan X, Wang M, Ren K, Xu Q, Lv L, Yin C, Liu X, Zhang H, Mahmoud K. Increasing the autotrophic growth of
Chlorella
USTB
‐01 via the control of bacterial contamination by
Bdellovibrio
USTB
‐06. J Appl Microbiol 2018; 124:1131-1138. [DOI: 10.1111/jam.13682] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 09/04/2017] [Accepted: 11/07/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Li
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - F. Qiu
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - H. Yan
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - X. Wan
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - M. Wang
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - K. Ren
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - Q. Xu
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - L. Lv
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - C. Yin
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - X. Liu
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - H. Zhang
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
| | - K. Mahmoud
- School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing China
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Yousefi S, Hoseinifar SH, Paknejad H, Hajimoradloo A. The effects of dietary supplement of galactooligosaccharide on innate immunity, immune related genes expression and growth performance in zebrafish (Danio rerio). FISH & SHELLFISH IMMUNOLOGY 2018; 73:192-196. [PMID: 29258754 DOI: 10.1016/j.fsi.2017.12.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/06/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
The present study investigates the effect of different levels of galactooligosaccharide (GOS) on innate immune parameters, immune related genes expression as well as growth performance in zebrafish (Danio rerio). Four hundred and twenty fish (mean weight 45 ± 0.1 mg) were supplied, randomly stocked in twelve aquaria assigned to four treatments. Zebrafish were fed with either control diet or control diet enriched with different levels (0.5, 1 and 2%) of GOS for eight weeks. At the end of feeding trial innate immune parameters (total immunoglobulin, total protein and alkaline phosphatase activity), immune related genes expression (interleukin 1 beta [il1b], Lysozyme [lyz], tumor necrosis factor alpha [tnf-alpha]) as well as growth performance were measured. Evaluation of immune parameters revealed significant (P < .05) increase of total protein and total Ig in zebrafish fed 1 or 2% GOS compared other treatments. However, in case of lysozyme activity no significant (P > .05) differences were noticed between GOS fed fish and control group. Also, in case of ALP activity, significant increase (P < .05) was observed in 2% GOS treatment. Gene expression studies revealed significant upregulation (P < .05) of tnf-alpha and lyz genes in GOS fed fish. While no significant (P > .05) difference was observed in case of il1b gene expression. Evaluation of growth performance at the end of feeding trial revealed no significant (P < .05) improvement in GOS fed groups. The present results revealed positive effects of GOS on innate immune parameters and related gene expression in zebrafish.
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Affiliation(s)
- Samira Yousefi
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seyed Hossein Hoseinifar
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
| | - Hamed Paknejad
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Abdolmajid Hajimoradloo
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Zhang Q, Tan X, Lin K, Zeng L, Xiang W, Tang J. Temporal heterogeneity of prokaryotic micro-organism communities in sediment of traditional freshwater cultured fish ponds in Southwest China. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2017.1400403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Qing Zhang
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
| | - Xiao Tan
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
| | - Kai Lin
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
| | - Lin Zeng
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
| | - Wenliang Xiang
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
| | - Jie Tang
- Key Laboratory of Food Biotechnology of Sichuan, School of Food Science and Biotechnology, Xihua University, Chengdu, P.R. China
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Arvanitakis G, Temmerman R, Spök A. Development and use of microbial-based cleaning products (MBCPs): Current issues and knowledge gaps. Food Chem Toxicol 2017; 116:3-9. [PMID: 29273419 DOI: 10.1016/j.fct.2017.12.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 11/18/2022]
Abstract
Cleaning products containing microbes as active ingredients are becoming increasingly prevalent as an alternative to chemical-based cleaning products. These microbial-based cleaning products (MBCPs) are being used in domestic and commercial settings (i.e., households and businesses) and institutional settings (e.g., hospitals, schools, etc.), in a variety of cleaning activities (hard surface cleaning, odour control, degreasing, septic tank treatments, etc.). They are typically described as "environmentally friendly" and "non-toxic". Publicly available information sources (scientific literature, patent databases, commercial websites) were searched for information on microbial species contained in MBCPs, their mode of action, cleaning applications in which they are used, and their potential impacts on human health and the environment. Although information was found providing a broad indication of microbial genera/species used, information on specific species/strains and quantities produced and sold is generally lacking. This makes it difficult to conduct a meaningful examination of any risks to human health and the environment from the production and use of MBCPs and to determine how effective current policies and regulatory frameworks are in addressing these issues. These and other challenges were addressed at an international workshop in Ottawa, Canada in June 2013 by a number of stakeholders, including industry, government, academic and non-governmental organizations.
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Affiliation(s)
| | - Robin Temmerman
- Chrisal NV/SA, Priester Daensstraat 9, 3920 Lommel, Belgium.
| | - Armin Spök
- Alpen-Adria Universität Klagenfurt, Wien-Graz, Schlögelgasse 2, A-8010 Graz, Austria.
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Gao XY, Liu Y, Miao LL, Li EW, Hou TT, Liu ZP. Mechanism of anti-Vibrio activity of marine probiotic strain Bacillus pumilus H2, and characterization of the active substance. AMB Express 2017; 7:23. [PMID: 28097594 PMCID: PMC5241254 DOI: 10.1186/s13568-017-0323-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/02/2017] [Indexed: 01/22/2023] Open
Abstract
Vibriosis is a major epizootic disease that impacts free-living and farmed fish species worldwide. Use of probiotics is a promising approach for prevention of Vibrio infections in aquaculture. A probiotic anti-Vibrio strain, Bacillus pumilus H2, was characterized, and the mechanism of its effect was investigated. All 29 Vibrio strains tested were growth-inhibited by H2. The anti-Vibrio substance present in cell-free supernatant of H2 was purified and characterized by reversed-phase HPLC. Minimum inhibitory concentrations of the purified substance, determined in liquid media for various Vibrio strains, ranged from 0.5 to 64 µg/ml. Addition of the purified substance to Vibrio vulnificus culture inhibited cell growth (estimated by OD600). Confocal microscopy and scanning electron microscopy analyses showed that surface structure of V. vulnificus cells was damaged by the purified substance, as reflected by presence of membrane holes, disappearance of cellular contents, and formation of cell cavities. The major mechanism of this anti-Vibrio activity appeared to involve disruption of cell membranes, and consequent cell lysis. The purified anti-Vibrio substance was shown to be structurally identical to amicoumacin A by MS and NMR analysis. Our findings indicate that B. pumilus H2 has strong potential for prevention or treatment of fish vibriosis in the aquaculture industry.
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Affiliation(s)
- Xi-Yan Gao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, No. 1 West Beichen Road, Chaoyang District, Beijing, 100101 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Ying Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, No. 1 West Beichen Road, Chaoyang District, Beijing, 100101 People’s Republic of China
| | - Li-Li Miao
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, No. 1 West Beichen Road, Chaoyang District, Beijing, 100101 People’s Republic of China
| | - Er-Wei Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 People’s Republic of China
| | - Ting-Ting Hou
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, No. 1 West Beichen Road, Chaoyang District, Beijing, 100101 People’s Republic of China
| | - Zhi-Pei Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, No. 1 West Beichen Road, Chaoyang District, Beijing, 100101 People’s Republic of China
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Brito LO, Simão BR, Pereira Neto JB, Cemirames G, Azevedo CMDSBD. DENSIDADE PLANCTÔNICA DO POLICULTIVO DE Litopenaeus vannamei E Oreochromis niloticus. CIÊNCIA ANIMAL BRASILEIRA 2017. [DOI: 10.1590/1089-6891v18e-16840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo Um experimento foi realizado durante 95 dias para avaliar as densidades planctônicas do policultivo do camarão branco Litopenaeus vannamei e da tilápia do Nilo Oreochromis niloticus. O delineamento experimental foi inteiramente casualizado com seis tratamentos e quatro repetições cada. Os tratamentos foram: monocultivo com 10 camarões m2 (10S:0T); policultivo com 10 camarões e 0,5 tilápia m2 (10S:0.5T); policultivo com 10 camarões e 1 tilapia m2 (10S:1T); monocultivo com 2 tilápias m2 (2T:0S); policultivo com 2 tilápias e 2,5 camarões m2 (2T:2,5S); e policultivo com 2 tilápias e 5 camarões m2 (2T:5S). Não foi realizada troca de água e nem fornecimento de aeração artificial durante o período experimental, apenas utilizou-se água para completar o volume perdido pela evaporação. O fitoplâncton variou de 78.981 a 303.260 cél.mL-1 e o zooplâncton variou de 470 a 1.421 org.L-1. Os grupos mais frequentes foram Bacillariophyta (fitoplâncton) e Rotífera (zooplâncton). Pode-se concluir que em sistema de policultivo do camarão branco (Litopenaeus vannamei) e a tilápia do Nilo (Oreochromis niloticus) não ocorrem modificações significativas nas densidades do fitoplâncton e zooplâncton em decorrência da alteração das densidades de estocagem do cultivo.
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Effect of feeding mixed microbial culture fortified with trace minerals on ruminal fermentation, nutrient digestibility, nitrogen and trace mineral balance in Sheep. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2016; 58:21. [PMID: 27226898 PMCID: PMC4879747 DOI: 10.1186/s40781-016-0102-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 04/20/2016] [Indexed: 11/10/2022]
Abstract
Background The aim of the present study was to determine the effects of feeding trace mineralsfortified mixed microbial culture (TMC) on ruminal fermentation, nutrient digestibility, blood electrolyte status, nitrogen balance, and trace mineral balance in sheep. Methods Mixed microbes [0.6 % (v/w) of Enterobacter sp., Bacillus sp., Lactobacillus sp., and Saccharomyces sp.] were cultured with 99 % feedstuffs and 0.4 % trace minerals including zinc and copper for ensiling. Six sheep (a mean body weight of 46.5 ± 1.2 kg) were fed two diets: a control diet (concentrate mix and rye straw) and an experimental diet (a control diet + 3.1 % TMC). Results TMC feeding did not induce negative effects on ruminal fermentation, nutrient digestibility, blood electrolytes, and nitrogen balance in sheep. Feeding with TMC increased the intake of trace minerals (p < 0.05) and did not affect absorption of trace minerals in the whole digestive tract. Feeding with TMC increased fecal excretion and absorbable intake, and retention of zinc and copper (p < 0.05) by 71 % and 77 %, respectively. Conclusion Feeding with TMC resulted in higher zinc and copper bioavailability and retention without any adverse effects on sheep performance.
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Wołejko E, Łozowicka B, Kaczyński P, Jankowska M, Piekut J. The influence of effective microorganisms (EM) and yeast on the degradation of strobilurins and carboxamides in leafy vegetables monitored by LC-MS/MS and health risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:64. [PMID: 26718945 PMCID: PMC4696979 DOI: 10.1007/s10661-015-5022-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 11/30/2015] [Indexed: 05/18/2023]
Abstract
The aim of this study was to determine the behaviour of strobilurin and carbocyamides commonly used in chemical protection of lettuce depending on carefully selected effective microorganisms (EM) and yeast (Y). Additionally, the assessment of the chronic health risk during a 2-week experiment was performed. The statistical method for correlation of physico-chemical parameters and time of degradation for pesticides was applied. In this study, the concentration of azoxystrobin, boscalid, pyraclostrobin and iprodione using liquid chromatography-mass spectrometry (LC-MS/MS) in the matrix of lettuce plants was performed, and there was no case of concentration above maximum residues levels. Before harvest, four fungicides and their mixture with EM (1 % and 10 %) and/or yeast 5 % were applied. In our work, the mixtures of 1%EM + Y and 10%EM + Y both stimulated and inhibited the degradation of the tested active substances. Adding 10%EM to the test substances strongly inhibited the degradation of iprodione, and its concentration decreased by 30 %, and in the case of other test substances, the degradation was approximately 60 %. Moreover, the addition of yeast stimulated the distribution of pyraclostrobin and boscalid in lettuce leaves. The risk assessment for the pesticides ranged from 0.4 to 64.8 % on day 1, but after 14 days, it ranged from 0.0 to 20.9 % for children and adults, respectively. It indicated no risk of adverse effects following exposure to individual pesticides and their mixtures with EM and yeast.
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Affiliation(s)
- Elżbieta Wołejko
- Faculty of Civil and Environmental Engineering, Bialystok University of Technology, Wiejska Str. 45 E, 15-351, Bialystok, Poland.
| | - Bożena Łozowicka
- Plant Protection Institute - National Research Institute, Regional Experimental Station, Pesticide Residue Laboratory, Chełmońskiego Str. 22, 15-195, Bialystok, Poland.
| | - Piotr Kaczyński
- Plant Protection Institute - National Research Institute, Regional Experimental Station, Pesticide Residue Laboratory, Chełmońskiego Str. 22, 15-195, Bialystok, Poland
| | - Magdalena Jankowska
- Plant Protection Institute - National Research Institute, Regional Experimental Station, Pesticide Residue Laboratory, Chełmońskiego Str. 22, 15-195, Bialystok, Poland
| | - Jolanta Piekut
- Faculty of Civil and Environmental Engineering, Bialystok University of Technology, Wiejska Str. 45 E, 15-351, Bialystok, Poland
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Kwak WS, Kim YI, Lee SM, Lee YH, Choi DY. Effect of Feeding a Mixed Microbial Culture Fortified with Trace Minerals on the Performance and Carcass Characteristics of Late-fattening Hanwoo Steers: A Field Study. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 28:1592-8. [PMID: 26580283 PMCID: PMC4647099 DOI: 10.5713/ajas.15.0101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/19/2015] [Accepted: 05/26/2015] [Indexed: 11/27/2022]
Abstract
This study was conducted to determine the effects of feeding a trace minerals-fortified microbial culture (TMC) on the performance and carcass characteristics of late-fattening Hanwoo steers. A mixture of microbes (0.6% [v/w] of Enterobacter sp., Bacillus sp., Lactobacillus sp., and Saccharomyces sp.) was cultured with 99% feedstuff for ensiling and 0.4% trace minerals (zinc, selenium, copper, and cobalt). Sixteen late-fattening steers (mean age, 21.8 months) were allocated to two diets: a control diet (concentrate mix and rice straw) and a treated diet (control diet+3.3% TMC). At a mean age of 31.1 months, all the steers were slaughtered. The addition of TMC to the diet did not affect the average daily weight gain of the late fattening steers, compared with that of control steers. Moreover, consuming the TMC-supplemented diet did not affect cold carcass weight, yield traits such as back fat thickness, longissimus muscle area, yield index or yield grade, or quality traits such as meat color, fat color, texture, maturity, marbling score, or quality grade. However, consumption of a TMC-supplemented diet increased the concentrations of zinc, selenium, and sulfur (p<0.05) in the longissimus muscle. With respect to amino acids, animals consuming TMC showed increased (p<0.05) concentrations of lysine, leucine, and valine among essential amino acids and a decreased (p<0.05) concentration of proline among non-essential amino acids. In conclusion, the consumption of a TMC-supplemented diet during the late-fattening period elevated the concentrations of certain trace minerals and essential amino acids in the longissimus muscle, without any deleterious effects on performance and other carcass characteristics of Hanwoo steers.
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Affiliation(s)
- W S Kwak
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - Y I Kim
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - S M Lee
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - Y H Lee
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - D Y Choi
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
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Vibrio cholerae pathogen from the freshwater-cultured whiteleg shrimp Penaeus vannamei and control with Bdellovibrio bacteriovorus. J Invertebr Pathol 2015; 130:13-20. [DOI: 10.1016/j.jip.2015.06.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 06/16/2015] [Accepted: 06/22/2015] [Indexed: 11/20/2022]
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FERREIRA AHC, BRITO JMD, LOPES JB, SANTANA JÚNIOR HAD, BATISTA JMM, SILVA BR, SOUZA EM, AMORIM ILDS. Probiótico na alimentação de pós-larvas de tilápias-do-nilo submetidas a desafio sanitário. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2015. [DOI: 10.1590/s1519-99402015000200017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objetivou-se avaliar o efeito da cepa probiótica Saccharomy cerevisiae na alimentação de pós-lavas de tilápias-do-nilo submetidas a desafio sanitário (fezes de ovinos). Foram selecionadas 300 pós-larvas, com média de peso e comprimentos uniformes. Os tratamentos consistiram de peixes cultivados em água limpa com ração comercial, em quantidade de 10% da biomassa, sem o uso de probiótico e peixes cultivados em água sob desafio sanitário, alimentados com ração comercial, em quantidade de 10% da biomassa e com o uso de probiótico (1,0g Kg-1). Para promover o desafio sanitário aos peixes, foram dissolvidos 50g de fezes de ovinos trituradas in naturaem 1000,0mL de água. Foram avaliadas as variáveis da qualidade da água para determinação imposta pelos dois tratamentos experimentais. Constatou-se efeito significativo (P<0,05) na concentração de fósforo total, pH e oxigênio dissolvido da água com fezes de ovinos, representando o desafio do meio, fato este essencial para a realização desse experimento. Não houve efeito significativo (P>0,05) nas variáveis de desempenho, sobrevivência e índice hepato-somático. As pós-larvas de tilápias-do-nilo alimentadas com ração contendo probiótico (1g.kg-1) submetidas a desafio sanitário proporcionam melhorias no desempenho, sobrevivência e índice hepatossomático equiparando-se aos peixes de água limpa sem o uso de probiótico.
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Mukkata K, Kantachote D, Wittayaweerasak B, Techkarnjanaruk S, Boonapatcharoen N. Diversity of purple nonsulfur bacteria in shrimp ponds with varying mercury levels. Saudi J Biol Sci 2015; 23:478-87. [PMID: 27298580 PMCID: PMC4890186 DOI: 10.1016/j.sjbs.2015.05.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 05/22/2015] [Accepted: 05/25/2015] [Indexed: 11/20/2022] Open
Abstract
This research aimed to study the diversity of purple nonsulfur bacteria (PNSB) and to investigate the effect of Hg concentrations in shrimp ponds on PNSB diversity. Amplification of the pufM gene was detected in 13 and 10 samples of water and sediment collected from 16 shrimp ponds in Southern Thailand. In addition to PNSB, other anoxygenic phototrophic bacteria (APB) were also observed; purple sulfur bacteria (PSB) and aerobic anoxygenic phototrophic bacteria (AAPB) although most of them could not be identified. Among identified groups; AAPB, PSB and PNSB in the samples of water and sediment were 25.71, 11.43 and 8.57%; and 27.78, 11.11 and 22.22%, respectively. In both sample types, Roseobacter denitrificans (AAPB) was the most dominant species followed by Halorhodospira halophila (PSB). In addition two genera, observed most frequently in the sediment samples were a group of PNSB (Rhodovulum kholense, Rhodospirillum centenum and Rhodobium marinum). The UPGMA dendrograms showed 7 and 6 clustered groups in the water and sediment samples, respectively. There was no relationship between the clustered groups and the total Hg (HgT) concentrations in the water and sediment samples used (<0.002–0.03 μg/L and 35.40–391.60 μg/kg dry weight) for studying the biodiversity. It can be concluded that there was no effect of the various Hg levels on the diversity of detected APB species; particularly the PNSB in the shrimp ponds.
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Affiliation(s)
- Kanokwan Mukkata
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Thailand
| | - Duangporn Kantachote
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
| | - Banjong Wittayaweerasak
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand; Faculty of Environmental Management, Prince of Songkla University, Hat Yai 90112, Thailand
| | - Somkiet Techkarnjanaruk
- National Center for Genetics Engineering and Biotechnology, Bangkok, Thailand; Excellent Center of Waste Utilization and Management, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Nimaradee Boonapatcharoen
- Excellent Center of Waste Utilization and Management, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
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Naseri S, Khara H, Shakoori M. Evaluation of Bacillus licheniformis and Bacillus subtilis as probiotic and Fe ion effects on haematological parameters of rainbow trout, Oncorhynchus mykiss frys. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s00580-015-2110-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Effects of dietary fructo-oligosaccharide supplementation on the growth performance, haemato-immunological parameters, gut microbiota and stress resistance of common carp (Cyprinus carpio) fry. Br J Nutr 2014; 112:1296-302. [PMID: 25313574 DOI: 10.1017/s0007114514002037] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The present study was conducted to investigate the effects of dietary fructo-oligosaccharide (FOS) (0, 1, 2 and 3%) supplementation on the growth performance, haemato-immunological parameters, cultivable autochthonous (non-adherent) intestinal microbiota and stress resistance of common carp (Cyprinus carpio) fry (3·23 (SEM 0·14) g). These parameters were measured after feeding the carp fry with the experimental diets for 7 weeks. Dietary FOS supplementation had no significant effects on the growth performance and food intake of carp fry compared with the control treatment. It also had no significant effects on the following haematological parameters: erythrocyte count; leucocyte counts (WBC); haematocrit; Hb; mean corpuscular volume; mean corpuscular Hb content; mean corpuscular Hb concentration. However, WBC and respiratory burst activity were significantly affected by dietary FOS supplementation. Evaluation of the cultivable autochthonous intestinal microbiota revealed a significant increase in the levels of total viable heterotrophic aerobic bacteria and lactic acid bacteria in fish fed diets supplemented with 2 and 3% FOS. Furthermore, dietary FOS supplementation significantly increased the survival rate and stress resistance of carp fry compared with the control treatment. These results encourage conducting further research on the administration of FOS and other prebiotics in carp fry studies.
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Cao H, Hou S, He S, Lu L, Yang X. Identification of a Bacteriovorax sp. isolate as a potential biocontrol bacterium against snakehead fish-pathogenic Aeromonas veronii. JOURNAL OF FISH DISEASES 2014; 37:283-289. [PMID: 23745946 DOI: 10.1111/jfd.12120] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/11/2013] [Accepted: 04/14/2013] [Indexed: 06/02/2023]
Affiliation(s)
- H Cao
- National Pathogen Collection Center for Aquatic Animals, Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources of Ministry of Education, Shanghai Ocean University, Shanghai, China; Shanxi Veterinary Drug and Feed Engineering Technology Research Center, Yuncheng, China
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45
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Cao H, He S, Lu L, Yang X, Chen B. Identification of a Proteus penneri isolate as the causal agent of red body disease of the cultured white shrimp Penaeus vannamei and its control with Bdellovibrio bacteriovorus. Antonie van Leeuwenhoek 2013; 105:423-30. [PMID: 24271474 DOI: 10.1007/s10482-013-0079-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 11/15/2013] [Indexed: 11/29/2022]
Abstract
Bacteriosis has become a major economic problem in the farming of the Pacific white shrimp Penaeus vannamei. However, no definitive data are available about Proteus penneri infection in cultured P. vannamei and its control. In this study, a virulent strain NC was isolated from diseased P. vannamei suffering from red body disease and identified as a P. penneri isolate through phylogenetic analysis and ATB 32GN system. A phylogenetic constructed tree using the neighbour-joining method identified the NC isolate as a P. penneri strain. In addition, Bdellovibrio bacteriovorus conferred significant protection against P. penneri: it exhibited significant bacteriolytic effects on the pathogenic P. penneri, had a wide prey range towards Proteus pathogens, and displayed a good protective efficacy on experimental P. penneri infection in P. vannamei. To the best of our knowledge, this is the first report of farmed P. vannamei infected with P. penneri and its control with B. bacteriovorus.
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Affiliation(s)
- Haipeng Cao
- Key Laboratory of Freshwater Fishery Germplasm Resources, Ministry of Agriculture of P. R. China, Shanghai Engineering Research Center of Aquaculture, Shanghai University Knowledge Service Platform, Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206), National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, 201306, People's Republic of China,
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46
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Isolation, selection and characterization of low-temperature organic-pollutant-degrading bacteria in sea cucumber ponds. ACTA ACUST UNITED AC 2013. [DOI: 10.3724/sp.j.1118.2012.00626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Schock TB, Duke J, Goodson A, Weldon D, Brunson J, Leffler JW, Bearden DW. Evaluation of Pacific white shrimp (Litopenaeus vannamei) health during a superintensive aquaculture growout using NMR-based metabolomics. PLoS One 2013; 8:e59521. [PMID: 23555690 PMCID: PMC3608720 DOI: 10.1371/journal.pone.0059521] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 02/15/2013] [Indexed: 11/19/2022] Open
Abstract
Success of the shrimp aquaculture industry requires technological advances that increase production and environmental sustainability. Indoor, superintensive, aquaculture systems are being developed that permit year-round production of farmed shrimp at high densities. These systems are intended to overcome problems of disease susceptibility and of water quality issues from waste products, by operating as essentially closed systems that promote beneficial microbial communities (biofloc). The resulting biofloc can assimilate and detoxify wastes, may provide nutrition for the farmed organisms resulting in improved growth, and may aid in reducing disease initiated from external sources. Nuclear magnetic resonance (NMR)-based metabolomic techniques were used to assess shrimp health during a full growout cycle from the nursery phase through harvest in a minimal-exchange, superintensive, biofloc system. Aberrant shrimp metabolomes were detected from a spike in total ammonia nitrogen in the nursery, from a reduced feeding period that was a consequence of surface scum build-up in the raceway, and from the stocking transition from the nursery to the growout raceway. The biochemical changes in the shrimp that were induced by the stressors were essential for survival and included nitrogen detoxification and energy conservation mechanisms. Inosine and trehalose may be general biomarkers of stress in Litopenaeus vannamei. This study demonstrates one aspect of the practicality of using NMR-based metabolomics to enhance the aquaculture industry by providing physiological insight into common environmental stresses that may limit growth or better explain reduced survival and production.
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Affiliation(s)
- Tracey B Schock
- Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, South Carolina, United States of America.
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Kamgar M, Ghane M. Evaluation of Bacillus subtilis Effect as Probiotic on Hematological Parameters of Rainbow Trout, Oncorhynchus mykiss (Walbaum) Following Experimental Infection with Streptococcus iniae. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/jfas.2012.422.430] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Ekpeghere KI, Kim BH, Son HS, Whang KS, Kim HS, Koh SC. Functions of effective microorganisms in bioremediation of the contaminated harbor sediments. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2012; 47:44-53. [PMID: 22217081 DOI: 10.1080/10934529.2012.629578] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The aim of this study was to apply loess balls containing effective microorganisms (EM) to the remediation of contaminated harbor sediments, and to thereby elucidate the functions of EM in remediation. Changes in physicochemical, biochemical, and microbiological parameters were measured to monitor the remediation process at a laboratory scale. Treatment with high concentrations of EM stock culture and EM loess balls (4%), and a low concentration of EM loess balls (0.1%) that contained molasses (0.05%) contributed to more rapid removal of malodor. Acetic acid, propionic acid, valeric acid, caponic acid, and lactic acid were rapidly removed in the presence of molasses (0.05% w/w) as a carbon nutrient source, indicating enhanced EM activity by amendment with molasses. Fermentation of molasses by EM showed that more acetic acid was produced compared with other organic acids, and that the majority of organic acids were eventually converted to acetate via intermediate metabolites. Sediment bioremediation tests showed there was no significant difference in eubacterial density with the control and the treatments. However, the density of a Lactobacillus sp. in sediments treated with 0.1% and 4.0% EM loess balls was significantly higher than the control, which indicated the bioaugmentation effect of EM loess balls in the polluted sediments. Treatment with EM loess balls and an appropriate amount of molasses, or other nutrients, will facilitate the remediation of polluted marine sediments by malodor removal, via EM degradation or utilization of offensive organic acids. To our knowledge, this is the first study to remediate contaminated marine (harbor) sediments using EM loess balls and to understand EM function during the bioaugmentation process, both in terms of organic acid metabolism and the dynamics of the engineered microbial community.
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Affiliation(s)
- Kalu I Ekpeghere
- Department of Environmental Engineering, Korea Maritime University, Busan, Republic of Korea
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50
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Cao H, He S, Wang H, Hou S, Lu L, Yang X. Bdellovibrios, potential biocontrol bacteria against pathogenic Aeromonas hydrophila. Vet Microbiol 2011; 154:413-8. [PMID: 21864996 DOI: 10.1016/j.vetmic.2011.07.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/25/2011] [Accepted: 07/26/2011] [Indexed: 10/17/2022]
Abstract
Recent studies have revealed that the use of bdellovibrios is an alternative to control bacteriosis. However, no bdellovibrios are available against Aeromonas hydrophila infections in sturgeons. In the present study, a potential Bdellovibrio strain F16 was isolated from sturgeon gut samples, using a sturgeon-pathogenic A. hydrophila as the prey bacterium. It was initially identified as a Bdellovibrio strain using morphological characteristics and specific PCR amplification, and confirmed to be Bdellovibrio sp. strain ETB (GenBank Accession No. DQ302728) and Bdellovibrio bacteriovorus strain SRA9 (GenBank Accession No. AF263833) by phylogenetic analysis. In addition, it was shown to be safe for mammalians and sturgeons, had a wide prey range, and exhibited significant bacteriolytic effects on the pathogenic A. hydrophila. To the best of our knowledge, this is the first report on a promising gut Bdellovibrio strain against pathogenic A. hydrophila.
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Affiliation(s)
- Haipeng Cao
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources of Ministry of Education, National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, PR China
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